What PSU should I buy? SuperFlower or Corsair?

[Ridiche Salatoi]

Hi. My PC consists of: Asus P8B75-V, I5 3350p, 16GB DDR3 1600, Sapphire 7850 2GB. I need to buy a need PSU, since my 5 years old Seasonic s12II 620w has started to do some weird noise, which I've seen on the Internet that it is pretty common with this model, and when it does that, my monitor image also turns off for a couple of seconds. Which PSU should I buy as a replacement?
1. Corsair RM Series RM650x 650W.
2. SuperFlower Leadex II Gold 650W.
Some guys told me not to buy the superflower one, as they had bad experiences with this company in the past, but I can see everyone braggs them pretty much. Thanks in advance!

 

[Lutfij]

Between those two, I'd choose the Corsair unit.

 

[Phillip Corcoran]

Corsair without a doubt.

 

[bignastyid]

Both are great quality units. I'd grab the cheaper of the 2. Can't say how superflowers support is since they are only available as rebranded Evga g3 units here in the states.

 

[Rexer]

I've owned Corsair, Seasonic and EVGA. All of them are great. Only bad Corsair was the RM750 (first year) back in '12. I know because I bought it. They recalled certain serial numbers and mine just happen to be one of them.
The Corsair, since RMA replaced and Seasonic are 5 years old. The EVGA is 2 yrs. I've no complaints.
Tom's Hardware put out a PSU Tier list in 2015.

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

I still hunt around for who's got an updated one.

https://linustechtips.com/main/topic/631048-psu-tier-list-updated/

http://www.johnnylucky.org/power-supplies/psu-recommendations.html

And the bad guys to avoid.

http://www.johnnylucky.org/power-supplies/psu-lemon-list.html

I like keeping a PSU list around after buying a few cheap ones. Chicony, Ultra and the cheap models from Antec.

hope this helps.